Conversion tables from/to British Thermal Unit [mean] (Btu mean)

british thermal unit [mean] to calorie [mean] (cal mean)	calorie [mean] (cal mean) to british thermal unit [mean]
british thermal unit [mean] to foot-pound (ft-lb)	foot-pound (ft-lb) to british thermal unit [mean]
british thermal unit [mean] to inch-pound (in lb)	inch-pound (in lb) to british thermal unit [mean]
british thermal unit [mean] to joule (J)	joule (J) to british thermal unit [mean]